퍼사드 패턴

// 퍼사드 클래스 public class HomeTheaterFacade { private Light light; private TV tv; private AudioSystem audio; public HomeTheaterFacade(Light light, TV tv, AudioSystem audio) { this.light = light; this.tv = tv; this.audio = audio; } public void watchMovie() { light.dim(); tv.turnOn(); audio.setSurroundSound(); audio.setVolume(10); } public void endMovie() { light.bright(); tv.turnOff(); audio.turnOff(); } }